Add legacy include guards to public header files

[oweals/openssl.git] / include / openssl / cast.h

diff --git a/include/openssl/cast.h b/include/openssl/cast.h
index c14c6979c402429e6e53eb476901def76f667095..a1aad6bda39fb82466b95942f0fb0a12dc40662a 100644 (file)
--- a/include/openssl/cast.h
+++ b/include/openssl/cast.h
@@ -9,6 +9,12 @@
 
 #ifndef OPENSSL_CAST_H
 # define OPENSSL_CAST_H
+# pragma once
+
+# include <openssl/macros.h>
+# if !OPENSSL_API_3
+#  define HEADER_CAST_H
+# endif
 
 # include <openssl/opensslconf.h>